title: Dermal nerve sheath myxoma.
abstract: A case of dermal nerve sheath myxoma on the left palm of 26-year-old Japanese man is presented. We examined this tumor by light and electron microscopies. On light microscopic examination, this tumor was characterized by a multilobulated myxoid tumor composed of stellate cells in an abundant mucous matrix. This histological feature resembled previously reported cases of dermal nerve sheath myxoma. On electron microscopic examination, the findings of these tumor cells were similar to those of the perineurial cells. These microscopical examinations have provided evidence for an origin from perineurial cells rather than Schwann cells.
authors.affiliation: Department of Dermatology, Hyogo College of Medicine, Japan.
authors.forename: N
authors.initials: N
authors.lastname: Yamashita
authors.forename: S
authors.initials: S
authors.lastname: Minami
authors.forename: M
authors.initials: M
authors.lastname: Yu
authors.forename: T
authors.initials: T
authors.lastname: Miyazaki
authors.forename: S
authors.initials: S
authors.lastname: Sagami
mesh_terms: D000328:Adult; D002462:Cell Membrane / Q000648:ultrastructure; D002467:Cell Nucleus / Q000648:ultrastructure; D003593:Cytoplasm / Q000648:ultrastructure; D006225:Hand; D006801:Humans; D008297:Male; D009232:Myxoma / Q000473:pathology* / Q000648:ultrastructure; D009441:Neurilemma / Q000473:pathology* / Q000648:ultrastructure; D009418:S100 Proteins / Q000737:chemistry; D012878:Skin Neoplasms / Q000473:pathology* / Q000648:ultrastructure
chemical_list: D009418:S100 Proteins